Albert m



(No Model.)

. A. M. BURRITT.

,Fir e Extinguisher.

No. 241,922.' Pat ented May 24, 1881.

J: van

a. mans MW Wm me UNITED STATES PATENT OFFICE.

ALBERT M. BURRITT, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE A. BURRITT HARDWARE COMPANY, OF SAME PLACE.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 241,922, dated May 24, 1881,

Application filed April 4, 1881. (No model.)

To all whom it may concern Be it known that I, ALBERT M. BURRITT, of Waterbury, in the county of New Haven and State of Connecticut, have invented a new Improvement in Fire-Extinguishers; and I do hereby declare the following, when taken in connection wit-l1 the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, iii- Figure l, a side view; Fig. 2, alongitudinal section.

This invention relates to an improvement in that class of fire-extinguishers which consist of a finely-perforated tip attached to the nozzle or outlet of the pipe in a room, and so constructed that when an accidental fire in the room shall raise the temperature to a predetermined point the supply of water will flow through the perforated tip and be distributed about the room in the form of spray, to extinguish the accidental fire.

One difficulty in this class of extinguishers arises from the fact that sediment or foreign particles are liable to settle in the pipe at the plug,and when the supply is let on the sediment or particles enter the perforated distributer or tip, and to a greater or less extent clog the perforations.

The object of my invention is to overcome this difficulty.

My invention consists in the arrangement of a plug constructed so that one end presents a spherical shape in the water-way leading to the distributor and secured by solder or similar fusible metal, and so that when liberated by heat the plug will enter the perforated distributer, and because of its peculiar shape will be made to move about within the dist'ributer by the action of the water, and by such movements break up or remove obstructions over the perforations within the distributer.

A represents the nozzle, which is attached to the supply-pipe at the point where the discharge is desirable, and into the end of this nozzle a metal plug, 13, is secured by a metal or material fusible at a low degree of temperature-that is to say, 100 to l-or substan 5o tially as caps or plugs are usually secured in such apparatus.

(3 is the tip or distributer, preferably of spherical form, chambered out or made hollow, and fitted to screw onto the outside of 5 the nozzle, and so as to inclose the plug 13. The tip or distributer is perforated, as shown, so that water forced into the chamber will be discharged therefrom in theform of spray. T he supply of water is supposed to be constant against the plug B, the plug constructed hollow, with one end rounded or semi-spherical, leaving straight sides sufficient to make connection with the walls of the passage in which it is placed. The spherical end is preferably arranged toward the water, so as to prevent the water from lying within the cup and close to the soldered sides, which would retard the effects of the heat.

Asidefrom the heat-retarding effect, the plug might be arranged with the spherical end toward the distributer; or the plug may be made semi-spherical at both ends, with sufficient bearing at the sides to make the required connection with the walls; but in any case it should be made hollow, so as to make it as light as possible, and yet sufficient to sustain the water-pressure.

If a fire occur near the point where this device is applied, the heat from the fire will quickly fuse or destroy the connection between the plug and the walls of the water-way, so as to permit the plug to be forced outward, followed by a forced supply of water. The plug enters the distributer, and will by the action of the water be kept in constant motion around the inner surface of the distributer, and by such motion will remove obstructions which may be over the perforations within the distributor. 0

From the foregoing it will be understood that I do not broadly claim a perforated distributer combined with a plug of fusible metal or secured by a fusible metal in the water-way, so that whenever the heat shall have risen to a predetermined degree the plug will be liberated and pass into the distributer or elsewhere, and permit the water to flow outward through the distributor, as such I am aware is shape, secured in thcwuter-wayat the entrance not new; but to the distributcr bya fusible connection sub- What I do claim isstanliuiiy as described. A fire-extinguisher consisting of a peri'o- ALBERT M. BURRITT. 5 rated distributor communicating with the \m- Witnesses:

ter-way,con1bincdwithninetnl plug construet- JOHN B. DOIIA'IY, ed at one end to present a rounded orspherieul E. J. DAVIS. 1 

